Ten amazing facts about the body
Bones are four times stronger than concrete.
The human body produces enough saliva in a lifetime to fill two swimming pools.
The acid in the stomach is strong enough to dissolve zinc.
The nose can recognise and remember 50000 different scents.
In 30 minutes, the human body gives off enough heat to bring a gallon of water to boil.
There are 45 miles of nerves in the body.
More than half of the bones in the human body are found in the hands and feet.
The humab body has enough carbon to fill 1000 pencils.
Our hearts pump 2000 gallons of blood each day.
Humans sneaze at speeds of up to 100 mph.